expired
19-Oz Frost King ACF19 Air Conditioner Coil Foaming Cleaner
$6.35
$16
60% off
Walmart
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WalmartDeal Details
Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free with Walmart+ (30-day trial for $1) or orders $35 or more. Otherwise, select store pickup where available.
Thanks to Deal Hunter phoinix for sharing this deal.
About this product:
- Foam cleans coils fan blades and reusable air filters
- Heavy-duty detergent dissolves stains grease oil and loosens dirt
- Neutralizes odors from standing water in drain pans
- Low VOC formula with pleasant lemon fragrance leaves fresh smell
- No rinse necessary for cleaning AC units
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.
- Additional Information:
- This offer matches our very popular front page deal from June 2026 which earned 70 thumbs up.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
No Longer Available:
- Amazon has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Prime or on $35+ orders.
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Walmart has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free with Walmart+ (30-day trial for $1) or orders $35 or more. Otherwise, select store pickup where available.
Thanks to Deal Hunter phoinix for sharing this deal.
About this product:
- Foam cleans coils fan blades and reusable air filters
- Heavy-duty detergent dissolves stains grease oil and loosens dirt
- Neutralizes odors from standing water in drain pans
- Low VOC formula with pleasant lemon fragrance leaves fresh smell
- No rinse necessary for cleaning AC units
Editor's Notes
Written by jimmytx | Staff- About this Store:
- Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
- If you're not a student, there's also a free 1-Month Amazon Prime trial available.
- Most items sold & shipped by Walmart.com can be returned for free, either to a store or by mail up to 90 Days after item is delivered. See the Walmart returns page for returns information.
- Additional Information:
- This offer matches our very popular front page deal from June 2026 which earned 70 thumbs up.
- Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.
No Longer Available:
- Amazon has 19-Oz Frost King Air Conditioner Coil Foaming Cleaner (ACF19) on sale for $6.37. Shipping is free w/ Prime or on $35+ orders.
Community Voting
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Price Intelligence
Deal History
Deal History includes data from multiple reputable stores, such as Best Buy, Target, and Walmart. The lowest price among stores for a given day is selected as the "Sale Price".
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
Sale Price does not include sale prices at Amazon unless a deal was posted by a community member.
Sale Price
- $NaN
- Today
Top Comments
a lot of HVAC companies will try and upsell cleaning services using acidic cleaners but in most cases it's completely unnecessary and can even cause damage to the coils. i'll use my neighbor's story as an example of his house at the shore:
an HVAC company recommended a condenser cleaning to my neighbor for his old 1990's system b/c they told him that the dark black coating on the fins is years of dirt build up and it's preventing the unit from running efficiency. they said they can clean it with an acidic cleaner. so they did a treatment and it wasn't working well, so they did another one, and another one. so 3 acidic cleaning treatments which is automatically a big no-no. they removed most of the dark coating on the fins and claimed job well done.
turns out, the dark coating was an extra anti-corrosion coating that the manufacturer used back in the 90's for condenser models designed for use in salty-air environments (ie like the shore). today, manufacturers usually use blue, clear, or sometimes brown/gold. so the tech was uneducated on working on older equipment, and ended up stripping off the anti corrosion coating. the coils then started rusting, and it sprung multiple leaks in the coils in 3 1/2 yrs. the unit lost all of the R22 refrigerant and due to the number of pits, it was beyond repair and he had to replace the entire condenser.
Note: this is referring to cleaning evaporator coils which produce condensate (water) and thus basically wash the product off the coils while the unit is running which then drains out the condensate drain line
If you are using this on condenser coils, after applying the cleaner and letting it dissolve the build up on the coils per the instructions, then you should get a hose sprayer on a gentle spray setting and wash the coils down.
Community Reviews
This foaming coil cleaner is aimed at HVAC evaporator and condenser coils, with the strongest use case being seasonal cleaning of home units, RV roof A.C. units, campers, and even mini splits when used outdoors. It is described as effective on condenser coils and works best with gentle rinsing, since the fins are easy to damage and the product can leave a strong smell that needs extra rinsing. The listing price around $6.35 to $6.37 is also called out as a regular sale level, though delivery costs can change the real total.
Common Questions (4)
It has been used successfully on camper A/C units and RV roof A/C units. One practical approach is to clean from the inside out and use it seasonally or annually.
The can has been seen around this price before, including $6.37 at Menards and on prior Amazon purchases. A Menards purchase can be even lower after the 11% rebate, and some listings may add high delivery charges.
It can be used on condenser coils if you rinse them afterward, and it has also been used outdoors on mini-splits. It is mainly intended for home HVAC evaporator coils, and it will not reach an automotive evaporator buried in a car dash.
For evaporator coils, the foam can be left to drain off with condensate, so no rinse is needed. For condenser coils, apply it per the instructions and then rinse with a gentle hose spray; the fins are easily damaged, so use low pressure.
AI-generated summary based on comments from the community. Updated ago
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30 Comments
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Had to rinse this a lot to get rid of the toxic smell. Good luck with your projects - GET THEM DONE!
If you're coils are black as tar, use Castrol Superclean. Get a whole gallon for about $10 bucks:
https://www.walmart.com/ip/Super-...om=/search
If your coils are not that bad, simply use window cleaner. Get a gallon for about $10 bucks:
https://www.walmart.com/ip/Great-...om=/search
If you want that brand new again aluminum look then use a wheel cleaner after the coils have already been thoroughly cleaned:
https://www.walmart.com/ip/Qualit...om=/search
All products, simply spray on, let sit 3 min, rinse off and done.... You're welcome!
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"$16 delivery Monday, September 14."
"Shipper / Seller: MRFK LLC STORE"
fyi: via my Prime account. Also, no S&S prompt.
sux cause dehumidifier really needs this now
Item no. 4908364
Price: $7.99
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